“RF Loss” is the topic of the latest (May 10) episode of the “ARRL The Doctor is In” podcast. Listen…and learn!
Sponsored by DX Engineering, “ARRL The Doctor is In” is an informative discussion of all things technical. Listen on your computer, tablet, or smartphone — whenever and wherever you like!
Every 2 weeks, your host, QST Editor-in-Chief Steve Ford, WB8IMY, and the Doctor himself, Joel Hallas, W1ZR, will discuss a broad range of technical topics. You can also e-mail your questions to doctor@arrl.org, and the Doctor may answer them in a future podcast.
Enjoy “ARRL The Doctor is In” on Apple iTunes, or by using your iPhone or iPad podcast app (just search for “ARRL The Doctor is In”). You can also listen online at Blubrry, or at Stitcher (free registration required, or browse the site as a guest) and through the free Stitcher app for iOS, Kindle, or Android devices. If you’ve never listened to a podcast before, download our beginner’s guide.
VHF
D Star & DMR for beginners- Radios, Hotspots and more
“I originally did this video as part of a monthly presentation for my local ham radio club. Its got some specific references to the Auburn CA cl... Read more
Es’hailSat 2 portable reception
Receiving Es’HailSat 2 from my balcony using *very* minimal setup. Read more
Kenwood D-STAR – Tribander 144/220/440 MHz
Kenwood D-STAR Built-in high-performance GPS unit Transflective color TFT display Weatherproof toughness meeting IP54/55 standards Wide-band and multi... Read more
Icom A220 VHF Air Band Transceiver
Icom A220 – Air to Ground Panel Mount Transceiver Icom’s A220 panel mount transceiver is a popular fit with experimental and light sport pilot... Read more
Ultimate Radio Communication Guide : What to Look for in a Handheld Transceiver
Radio Communication Guide “What To Look For In A Handheld Radio First off, my recommendations for radios are going to be primarily based... Read more
New Yaesu FTM-100DR System Fusion radio coming this June!
Yaesu FTM-100DR Item Description Dual Band Analog/Digital Mobile Transceiver Detailed Description FTM-100DR 2M/70 cm Dual-Band C4... Read more
Review
LimeSDR Mini – Full Duplex SDR Transceiver – DATV – QO100 – Es Hail 2
The LimeSDR Mini development board is a hardware platform for developing and prototyping high-performance and logic-intensive digital and RF designs t... Read more
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Antenna and Analyzer Questions by KE0OG
“New Ask Dave format with Dave Casler and with Ask Dave Editor Trevor Oman, takes on questions about antennas and analyzers.” Read more
Retevis RT82 DMR Dual Band Handheld Radio – Review
Description RT82 is a dual band DMR radio Frequency band:136-174 & 400-480MHz 10000 Contacts IP67 Waterproof Use Time-Division Multiple-Acces... Read more
IC-7610 Technical Report Vol. 3 (English Version)
Released the final issue of IC-7610 Technical Report, which explains the circuits used in the IC-7610 and some excellent functions of IC-7610. Read more
Equipment
SPE Expert 2K-FA Linear Amplifier
SPE Expert 2K-FA Product Specifications The smallest in its class. Built-in Power supply and Automatic Antenna Tuner. Dimension: L 38, H 18.3, P 43 cm... Read more
ANAN-8000DLE HF & 6M 200W SDR Transeiver
The ANAN-8000DLE HF & 6M 200W SDR Transceiver meets and exceeds the requirements of even the most discerning Amateur Radio Operator, it is based o... Read more
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Yaesu FTDX101D [ Preliminary Information ]
Yaesu FTDX101D As you are aware there is the soon to be released Yaesu FTdx101D 100W SDR transceiver. I am also pleased to announce the big brother of... Read more
How To Build A QRP Dummy Load by K7AGE
“In this video, I build a simple QRP Dummy Load that is good for up to 20 watts. It even has test point that you can use a meter to measure the... Read more
BITX40: A Fully Assembled $45 SSB QRP transceiver
BITX40 Work the world on 40 meters When was the last time you used a radio you had built? The BITX40 board is single circuit board 40 meter SSB transc... Read more
A $38.99 RTL-SDR with 100 Khz – 1.7 GHz coverage
RTL-SDR 100Khz-1.7GHz Full Band UV HF RTL-SDR USB Tuner Receiver/ R820T + 8232 Ham Radio 100% Brand New And High Quality Using the RTL2832 idle chann... Read more
App - Mobile
Ham GeoTool APP
A tool all-in-one for the radio amateur in Portugal and Spain created for personal use but at the last JOTA / JOTI, was released at the request of som... Read more
Free APRS application for iOS
What it’s all about A modern APRS app for iOS users, with models detection, frequencies detection, C4FM highlight… More features Receive l... Read more
The RS-MS1I APP is now available via the iTunes store
Description Functional overview of the application DR functions You can use some transceiver’s DR functions. Share pictures Send and receive vo... Read more
SmartSDR for iOS v2.6.2 Now Available
FlexRadio Systems announces the release of SmartSDR for iOS v2.6.2 is now available for download or update from the Apple App Store. This App requires... Read more
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Learn Morse Code in Minutes A Day [ APP ]
– Learn Morse Code with different modes of learning, using the letter frequency and spaced repetition to help you learn. – Customize your... Read more
